Crowfoot question

[MdBlades]

In the picture of the crowfoots on Simmonich's website. What is the handle material on the lower knife?

I like how it has the blue running through it. Also, is there a way that it could possibly have the little thumb indentation added like the nimravus has? I dunno if they would do something custom like that on a mid tech. Also, how big is the kerambit ring?

 

[shootist16]

The knife on the bottom uses blue/black g-10 for the handle material.